README.txt

I'm slowly building a hardware-based web server.
Feel free to look around, but it is not yet anywhere near working
Status
======
* ARP replies sent at Gigabit speeds
* ICMP is working at Gigabit speeds
* UDP RX & TX works at Gigabit speeds
TODO LIST OF MINOR ISSUES THAT I DON'T WANT TO FORGET
=====================================================
Inbound packet processing
-------------------------
* Inbound packet reception errors should cause the packet to be dropped.
* Inbound packet CRC verification is not being performed - should cause
packet to dropped
* Inbound packet MAC filtering not coded - should only accept packets
for 'our_mac' or the broadcast MAC. This could be handled the same as
CRC or reception errors (where the FIFO can be rolled back). Doing this
in one place could save resources.
TCP/IP Session protocol
-----------------------
* Can establish a TCP/IP session
* Sends ACKs for incoming data
* Currently listens on port 80 for any incoming connections
* Replies with 'FPGA says "Hi"\r\n' to any incoming packets that contains data
* Tears down session when remote end closes
TCP/IP packet support - mostly finished
---------------------------------------
* TCP RX IP Checksum is not being validated
* TCP RX TCP Checksum is not being validated
UDP Support - mostly finished
-----------------------------
* UDP TX cannot send a packet without any data
* UDP RX IP Checksum is not being validated
* UDP RX UDP Checksum is not being validated
* UDP RX of a packet with no data will not result in anything that the
consuming design can see.
ICMP Support - mostly finished
------------------------------
* ICMP 'echo request' is not validating that the IP checksum is correct
* ICMP 'echo request' is not validating that the ICMP length field is correct.
* ICMP 'echo request' is not validating that the ICMP checksum is correct
Outbound packet processing
--------------------------
* Outbound packets are not being sent correctly for 10 & 100Mbps speed.
This requies a 4k FIFO, which will block the arbiter when less than
1600 entries are free (enough for a packet and some loop latency)